白色薄片狀結(jié)晶或結(jié)晶性粉末。有特殊氣味。味微甜。熔點(diǎn)281度（分解）。10%水溶液的PH值5.6-6.1.無旋光性.對熱及空氣穩(wěn)定.對強(qiáng)酸不穩(wěn)定,可導(dǎo)致脫甲基作用.溶于水(3.3g/100ml,25度)、稀酸和稀減溶液。極難溶于乙醇，幾乎不溶于乙醚。
用途：人體必需的氨基酸之一，對于保護(hù)肝功能尤其重要，能促進(jìn)毛發(fā)、指甲生長，并具有解毒和增強(qiáng)肌肉活動(dòng)能力等作用，營養(yǎng)增補(bǔ)劑，可安全用于成人食品中。
Product properties: Colorless to white, odorless, non-toxic, acicular, crystal or crystalline powder with sweet taste and stable chemical properties. Nitrous acid can convert into L-lactic acid. Soluble in water, slightly soluble in ethanol. It’s a nutritional supplement.
Functions: DL-Methionine is one of the physical forms of methionine. DL-Methionine is not the natural form of methionine. Methionine is one of essential amino acids constituting the human body, involved in protein synthesis. Because it can not be generated in the body itself, it must be obtained from outside. Livestock and poultry lack of methionine, can lead to stunted growth, weight loss, liver and kidney function abate, muscle atrophy, fur, metamorphism and so on.
1. Methionine can be used as nutrient supplement. DL-methionine has the same effect with L-methionine, but DL-methionine is cheaper.
2. Methionine can be formulated as a flavoring agent.
3. Methionine has a protective role of the liver. Methionine has effects of anti-cirrhosis, fatty liver, and a variety of acute, chronic, viral, jaundice liver.
4. Methionine has a myocardial protective effect.
5. Methionine has an antidepressant effect.
6. Methionine has a blood pressure lowering effect.
7. Methionine has an antivirus poison eradicates effect.
8.Methionine is the feed nutrition enhancer.